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BOSTON MARATHON 2023

Janeth Calderon

Bib: 18490•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Female)
#0 / 11423
Top 12%
Division (F18-39)
#0 / 4884
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:28
Rank: #10106
Start → 5K
23:28 | 7:33/mi
10K· 6.21 mi
45:39
Rank: #8786 (+1320)
5K → 10K
22:11 | 7:08/mi
15K· 9.32 mi
1:07:59
Rank: #8426 (+360)
10K → 15K
22:20 | 7:11/mi
20K· 12.43 mi
1:30:35
Rank: #8175 (+251)
15K → 20K
22:36 | 7:16/mi
Half· 13.11 mi
1:35:31
Rank: #8163 (+12)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:53:25
Rank: #8084 (+79)
Half → 25K
17:54 | 7:23/mi
30K· 18.64 mi
2:17:20
Rank: #8131 (-47)
25K → 30K
23:55 | 7:42/mi
20M
2:27:59
Rank: #8169 (-38)
30K → 20M
10:39 | 7:50/mi
21M
2:36:30
Rank: #8289 (-120)
20M → 21M
8:31 | 8:31/mi
35K· 21.75 mi
2:42:09
Rank: #8294 (-5)
21M → 35K
5:39 | 7:33/mi
23M
2:51:54
Rank: #8267 (+27)
35K → 23M
9:45 | 7:47/mi
24M
2:59:33
Rank: #8268 (-1)
23M → 24M
7:39 | 7:39/mi
40K· 24.85 mi
3:06:15
Rank: #8267 (+1)
24M → 40K
6:42 | 7:50/mi
25.2M
3:09:13
Rank: #8284 (-17)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:17:10
Rank: #8352 (-68)
25.2M → Finish
7:57 | 7:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:31
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:41:39
Pace7:45 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3523:287:3323:28
7:33
-
10K
6.21 mi11:37:4645:397:2122:11
7:08
-0:25
15K
9.32 mi12:00:061:07:597:1822:20
7:11
+0:03
20K
12.43 mi12:22:421:30:357:1722:36
7:16
+0:05
Half
13.11 mi12:27:381:35:317:174:56
7:14
-0:02
25K
15.53 mi12:45:321:53:257:1817:54
7:23
+0:09
30K
18.64 mi13:09:272:17:207:2223:55
7:42
+0:19
20M
20.00 mi13:20:062:27:597:2410:39
7:50
+0:08
21M
21.00 mi13:28:372:36:307:278:31
8:31
+0:41
35K
21.75 mi13:34:162:42:097:275:39
7:33
-0:58
23M
23.00 mi13:44:012:51:547:289:45
7:47
+0:14
24M
24.00 mi13:51:402:59:337:297:39
7:39
-0:08
40K
24.85 mi13:58:223:06:157:306:42
7:50
+0:11
25.2M
25.20 mi14:01:203:09:137:312:58
8:36
+0:46
Finish
26.22 mi14:09:173:17:107:327:57
7:48
-0:48

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:08 /mi

Average Pace

7:32 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:57

46% of race

Time at Steady Pace

1:35:44

49% of race

Time at Slower Pace

11:29

6% of race

Average Pace: 7:31 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:15:3523:287:3323:28
7:33
#10106
10K
6.21 mi11:37:4645:397:2122:11
7:08
#8786
15K
9.32 mi12:00:061:07:597:1822:20
7:11
#8426
20K
12.43 mi12:22:421:30:357:1722:36
7:16
#8175
Half
13.11 mi12:27:381:35:317:174:56
7:14
#8163
25K
15.53 mi12:45:321:53:257:1817:54
7:23
#8084
30K
18.64 mi13:09:272:17:207:2223:55
7:42
#8131
20M
20.00 mi13:20:062:27:597:2410:39
7:50
#8169
21M
21.00 mi13:28:372:36:307:278:31
8:31
#8289
35K
21.75 mi13:34:162:42:097:275:39
7:33
#8294
23M
23.00 mi13:44:012:51:547:289:45
7:47
#8267
24M
24.00 mi13:51:402:59:337:297:39
7:39
#8268
40K
24.85 mi13:58:223:06:157:306:42
7:50
#8267
25.2M
25.20 mi14:01:203:09:137:312:58
8:36
#8284
Finish
26.22 mi14:09:173:17:107:327:57
7:48
#8352
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10106191019107744(Top 29%)986(Top 9%)986(Top 20%)
10K6.21 mi3.10 mi8786+13201320+5901320+5907705(Top 29%)961(Top 8%)961(Top 20%)
15K9.32 mi3.11 mi8426+3601189+1311189+1317744(Top 29%)986(Top 9%)986(Top 20%)
20K12.43 mi3.11 mi8175+2511109+801109+807615(Top 29%)971(Top 9%)971(Top 20%)
Half13.11 mi0.68 mi8163+121108+11108+18154(Top 31%)1160(Top 10%)1160(Top 24%)
25K15.53 mi2.42 mi8084+791109-11109-17897(Top 30%)1155(Top 10%)1155(Top 24%)
30K18.64 mi3.11 mi8131-471167-581167-588634(Top 32%)1566(Top 14%)1566(Top 32%)
20M20.00 mi1.36 mi8169-381197-301197-309153(Top 34%)1856(Top 16%)1856(Top 38%)
21M21.00 mi1.00 mi8289-1201257-601257-6010583(Top 40%)2656(Top 23%)2656(Top 54%)
35K21.75 mi0.75 mi8294-51272-151272-158941(Top 34%)1878(Top 16%)1878(Top 38%)
23M23.00 mi1.25 mi8267+271281-91281-98343(Top 31%)1726(Top 15%)1726(Top 35%)
24M24.00 mi1.00 mi8268-11305-241305-248769(Top 33%)1981(Top 17%)1981(Top 41%)
40K24.85 mi0.85 mi8267+11327-221327-228921(Top 34%)2137(Top 19%)2137(Top 44%)
25.2M25.20 mi0.35 mi8284-171340-131340-1310185(Top 38%)2765(Top 24%)2765(Top 57%)
Finish26.22 mi1.02 mi8352-681392-521392-5210693(Top 40%)3025(Top 26%)3025(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21stories
+97ft-345ft

Overall

7744

Females

986

F18-39

986

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

7705

Females

961

F18-39

961

10K→15K

6.2 - 9.3 mi

Top 29%
×3stories
+67ft-78ft

Overall

7744

Females

986

F18-39

986

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7615

Females

971

F18-39

971

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8154

Females

1160

F18-39

1160

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

7897

Females

1155

F18-39

1155

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8634

Females

1566

F18-39

1566

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9153

Females

1856

F18-39

1856

20M→21M

20.0 - 21.0 mi

Top 40%
×8stories
+106ft-24ft

Overall

10583

Females

2656

F18-39

2656

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

8941

Females

1878

F18-39

1878

35K→23M

21.8 - 23.0 mi

Top 31%
×5stories
+23ft-63ft

Overall

8343

Females

1726

F18-39

1726

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8769

Females

1981

F18-39

1981

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8921

Females

2137

F18-39

2137

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10185

Females

2765

F18-39

2765

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2stories
+22ft-21ft

Overall

10693

Females

3025

F18-39

3025

Passing Analysis

Category:
Athletes Passed
2717*
Passed By
963
Net Change
+1754
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10106
5K → 10K1341*21+1320#10106#8786
10K → 15K38020+360#8786#8426
15K → 20K27524+251#8426#8175
20K → Half2614+12#8175#8163
Half → 25K14364+79#8163#8084
25K → 30K115162-47#8084#8131
30K → 20M68106-38#8131#8169
20M → 21M36156-120#8169#8289
21M → 35K4752-5#8289#8294
35K → 23M9568+27#8294#8267
23M → 24M6667-1#8267#8268
24M → 40K5756+1#8268#8267
40K → 25.2M1734-17#8267#8284
25.2M → Finish51119-68#8284#8352
TOTALS2717*963+1754

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing